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Mary Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Stark-County, Ohio
Our Model Tree links this Mary Lambert across the 1930 and 1940 US Censuses in Stark-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Stark-County, Ohio |
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Stark |
| Additional Details | |
| Highest Grade | No 4 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Lake |
| Est. Birth Year | ~1930 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Lambert | Daughter | — | 10 | ~1930 |
| Helen Lambert | Daughter | — | 12 | ~1928 |
| Turlie Lambert | Head | — | 50 | ~1890 |
| Richard Lambert | Son | — | 19 | ~1921 |
| Odath Lambert | Son | — | 23 | ~1917 |
| Delmer Lambert | Son | — | 7 | ~1933 |
| Delbert Lambert | Son | — | 16 | ~1924 |
| Ralph Lambert | Son | — | 13 | ~1927 |
| Lela Lambert | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Stark, Ohio
Daughter, age 1
Stark, Ohio · implied b. ~1929 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Stark-County, Ohio
Daughter, age 10
Stark-County, Ohio · implied b. ~1930 — 9 household members
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Stark |
| Highest Grade | No 4 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Lambert across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lambert
Daughter · 1940 · age 10 · b. ~1930 · Ohio
★ You are viewing this record
Sibling
Delbert Lambert
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Odath Lambert
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Lambert
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delmer Lambert
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Lambert
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Lambert
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Stark-County, Ohio
Open full size
1940 US Federal Census — Stark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03149-00008)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth Hetrick | 1 | daughter | — | Ohio |
| 42 | Andrew Walter Hetrick | 69 | head | Machinist | Pennsylvania |
| 43 | Pearl Hetrick | 55 | wife | — | Ohio |
| 44 | Esther Hetrick | 12 | daughter | — | Ohio |
| 45 | Chas Marker | 52 | brother-in-law | 3 | Ohio |
| 46 | Wilson Chas | 20 | nephew | 40 | Ohio |
| 47 | Elbert Hazel | 36 | head | 40 | Ohio |
| 48 | Myrtle Hazel | 30 | wife | — | Ohio |
| 49 | James Werner | 61 | head | 24 | Ohio |
| 50 | Hilda Werner | 35 | wife | — | Michigan |
| 51 | James Jr Werner | 17 | son | 32 | Ohio |
| 52 | John Werner | 15 | son | — | Ohio |
| 53 | Frances Werner | 12 | daughter | — | Ohio |
| 54 | Henry Werner | 7 | son | — | Ohio |
| 55 | Walter Werner | 7 | son | — | Ohio |
| 56 | Marie Werner | 5 | daughter | — | Ohio |
| 57 | Shirley Ann Werner | 2 | daughter | — | Ohio |
| 58 | Jean Gooding | 18 | daughter | — | Ohio |
| 59 | Ronald Lee Gooding | 1 | grandson | — | Ohio |
| 60 | Roland Jarman | 31 | head | 40 | Ohio |
| 61 | Emma Jarman | 30 | wife | — | Ohio |
| 62 | Eleanor Jarman | 9 | daughter | — | Ohio |
| 63 | Wilma Jarman | 5 | daughter | — | Ohio |
| 64 | Joseph A Petro | 59 | head | 40 | Ohio |
| 65 | Ida L Petro | 60 | wife | — | Indiana |
| 66 | Lois R.S. Petro | 26 | daughter | 40 | Ohio |
| 67 | William C Turpin | 48 | head | Laborer | Kentucky |
| 68 | Dollie Turpin | 47 | wife | — | Kentucky |
| 69 | Delores Croft | 11 | granddaughter | — | Ohio |
| 70 | Turlie Lambert | 50 | head | Laborer | West Virginia |
| 71 | Lela Lambert | 49 | wife | — | West Virginia |
| 72 | Odath Lambert | 23 | son | Truck Driver | West Virginia |
| 73 | Richard Ab Lambert | 19 | son | Laborer | West Virginia |
| 74 | Delbert Lambert | 16 | son | — | Ohio |
| 75 | Ralph Lambert | 13 | son | — | Ohio |
| 76 | Helen Lambert | 12 | daughter | — | Ohio |
| 77 | Mary Lambert THIS PERSON | 10 | daughter | — | Ohio |
| 78 | Delmer Lambert | 7 | son | — | Ohio |
| 79 | John Dobbins | 52 | head | 20 | Ohio |
| 80 | Ruby Dobbins | 33 | wife | — | West Virginia |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)